Radon

86
Rn
Groep
18
Periode
6
Blok
p
Protonen
Elektronen
Neutronen
86
86
136
Algemene Eigenschappen
Atoomnummer
86
Atomair gewicht
[222]
Massa Getal
222
Categorie
Edelgassen
Kleur
Kleurloos
Radioactief
Ja
The name was derived from radium; called niton at first, from the Latin word nitens meaning shining
Kristalstructuur
n.v.t.
Historie
Radon was discovered in 1900 by Friedrich Ernst Dorn in Halle, Germany.

He reported some experiments in which he noticed that radium compounds emanate a radioactive gas.

In 1910, Sir William Ramsay and Robert Whytlaw-Gray isolated radon, determined its density, and determined that it was the heaviest known gas.
Eletronen per schil
2, 8, 18, 32, 18, 8
Electronconfiguratie
[Xe] 4f14 5d10 6s2 6p6
Rn
Upon condensation, radon glows because of the intense radiation it produces
Fysieke Eigenschappen
Fase
Gas
Dichtheid
0,00973 g/cm3
Smeltpunt
202 K | -71,15 °C | -96,07 °F
Kookpunt
211,3 K | -61,85 °C | -79,33 °F
Fusiewarmte
3 kJ/mol
Verdampingswarmte
17 kJ/mol
Specifieke Warmtecapaciteit
0,094 J/g·K
Overvloedig aanwezig in de aardkorst
n.v.t.
Overvloedig aanwezig in het universum
n.v.t.
Illustration
Verdiensten voor afbeeldingen: Images-of-elements
Illustration of radon
CAS-nummer
10043-92-2
PubChem CID nummer
24857
Atoomeigenschappen
Atoomstraal
120 pm
Covalentiestraal
150 pm
Electronegativiteit
-
Ionisatiepotentiaal
10,7485 eV
Atoomvolume
50,5 cm3/mol
Thermische geleiding
0,0000364 W/cm·K
Oxidatietoestanden
2, 4, 6
Toepassingen
Radon is used in hydrologic research that studies the interaction between ground water and streams.

Radon has been produced commercially for use in radiation therapy.

Radon has been used in implantable seeds, made of gold or glass, primarily used to treat cancers.
Radon is highly radioactive and a carcinogen
Isotopen
Stabiele isotopen
-
Instabiele isotopen
195Rn, 196Rn, 197Rn, 198Rn, 199Rn, 200Rn, 201Rn, 202Rn, 203Rn, 204Rn, 205Rn, 206Rn, 207Rn, 208Rn, 209Rn, 210Rn, 211Rn, 212Rn, 213Rn, 214Rn, 215Rn, 216Rn, 217Rn, 218Rn, 219Rn, 220Rn, 221Rn, 222Rn, 223Rn, 224Rn, 225Rn, 226Rn, 227Rn, 228Rn